Created
June 7, 2010 03:01
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MessagePackによるポインタ型のシリアライズ/デシリアライズ
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#include <msgpack.hpp> | |
#include <vector> | |
#include <map> | |
#include <iostream> | |
#include <cstdio> | |
struct point_t { | |
float x; | |
float y; | |
float z; | |
MSGPACK_DEFINE(x, y, z); | |
}; | |
struct cube_t { | |
point_t* p1; | |
point_t* p2; | |
point_t* p3; | |
MSGPACK_DEFINE(*p1, *p2, *p3); | |
}; | |
void serialize(const char* filename) | |
{ | |
// This is target object. | |
point_t p1, p2, p3; | |
p1.x = 1; p1.y = 2; p1.z = 3; | |
p2.x = 4; p2.y = 5; p2.z = 6; | |
p3.x = 7; p3.y = 8; p3.z = 9; | |
cube_t cube; | |
cube.p1 = &p1; cube.p2 = &p2; cube.p3 = &p3; | |
// Serialize it. | |
msgpack::sbuffer buffer; // simple buffer | |
msgpack::pack(&buffer, cube); | |
FILE* fp; | |
fp = fopen(filename, "wb"); | |
fwrite(buffer.data(), buffer.size(), 1, fp); | |
fclose(fp); | |
} | |
void deserialize(const char* filename) | |
{ | |
char buf[1024]; | |
FILE* fp; | |
fp = fopen(filename, "rb"); | |
ssize_t size = fread(buf, sizeof(buf[0]), 1024, fp); | |
msgpack::zone z; | |
msgpack::object obj; | |
msgpack::unpack(buf, size, NULL, &z, &obj); | |
std::cout << "pretty print: " << obj << std::endl; | |
try { | |
point_t p1, p2, p3; | |
cube_t data; | |
data.p1 = &p1; data.p2 = &p2; data.p3 = &p3; | |
obj.convert(&data); | |
printf("P1: %f, %f, %f\n", data.p1->x, data.p1->y, data.p1->z); | |
printf("P2: %f, %f, %f\n", data.p2->x, data.p2->y, data.p2->z); | |
printf("P3: %f, %f, %f\n", data.p3->x, data.p3->y, data.p3->z); | |
} catch(msgpack::type_error& e) { | |
std::cout << "type mismatch. std::vector<std::striang> is expected" | |
<< std::endl; | |
} | |
} | |
int main(int argc, char** argv) | |
{ | |
const char* filename = "msgpack.txt"; | |
serialize(filename); | |
deserialize(filename); | |
return 0; | |
} |
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